Crack-healing ability of structural ceramics and a new methodology to guarantee the structural integrity using the ability and proof-test

Ando, Kotoji; Furusawa, Kotokaze; Takahashi, Koji; Sato, Shigemi

doi:10.1016/j.jeurceramsoc.2004.01.027

Cited by 72 publications

(45 citation statements)

References 33 publications

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“…Ando 등에 의해 그 메카니즘이 제시되었는데, 세라믹스의 균열 치유 거동은 열처리 과정에서 세라믹스에 존재하는 탄화규소의 산화반응에 의한 것으로 보고되고 있다 (Ando et al, 2002a;Ando et al, 2002b;Ando et. al., 2005 …”

Section: 균열이 대기 중 고온에서의 열처리에 의해 치유되는 현상으로unclassified

Cyclic Crack Healing Effect of Al₂O₃Ceramics

Moon¹,

Kim²

2013

Journal of Ocean Engineering and Technology

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Section: 균열이 대기 중 고온에서의 열처리에 의해 치유되는 현상으로unclassified

Cyclic Crack Healing Effect of Al₂O₃Ceramics

Moon¹,

Kim²

2013

Journal of Ocean Engineering and Technology

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“…그 중 균열치유에 관한 연구는 Ando 등의 많은 연구자들의 관심아래 다양한 연구가 활발하게 진행되고 있다 [2][3][4][5] . 현재까지의 연구결과에 의하면 세 라믹스 재료의 균열치유 현상은 SiC의 산화반응에 의한 것으로 알려져 있으며 [6][7][8] 참고 문헌…”

Section: 김부안(교신저자)unclassified

Influence of SiC Content and Heat Treatments on Strength of Al2O3 Ceramics

Kim¹,

Moon²,

Yoon³

et al. 2011

Journal of the Korea Society For Power System Engineering

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Abstract：In the present study, crack healing effect and residual stress of Al2O3 ceramics were investigated by changing the sintering temperature and heat treatment conditions. And also it was investigated that the influence of different filler loadings of nano-sized SiC particles on the crack healing behavior of Al2O3 ceramics. The test samples were characterized by three point bend flexural tests to evaluate their mechanical properties. The morphological changes were studied by FE-SEM and EDS. The test results indicated that the Al2O3 with nano-sized SiC ceramics sintered at 1800 ℃ were showed highest density. Sintering temperature at 1800 ℃, the bending strength of heat treatment in air atmosphere specimens showed about 42 % increment in comparison to the un-heat treated specimens. The cracked specimens can be healed by heat treatment in vacuum atmosphere but the crack healing effect of Al2O3 ceramics, which is heat treated in air atmosphere was higher than that of heat treated in vacuum atmosphere. Al2O3 with 30 wt% of SiC ceramics indicated higher crack healing ability than that with 15 wt% of SiC ceramics. The FE-SEM images showed that the median cracks and pores were disappeared after heat treatment in air. 김부안(교신저자) : 부경대학교 신소재공학부

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“…In contrast to oxide based ceramics, carbide or nitride based ceramics have the ability of autonomous self healing by oxidation. For example, microcracks in SiC and Si 3 N 4 and their composites can be healed effectively with SiO 2 formed upon high temperature oxidation [39]. This crack healing ability makes these ceramics attractive as high temperature structural components.…”

Section: Precipitation Reactionsmentioning

confidence: 99%

Routes and mechanisms towards self healing behaviour in engineering materials

Zwaag¹

2010

Bulletin of the Polish Academy of Sciences: Technical Sciences

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Abstract. Modern man-made engineering materials demonstrate excellent mechanical properties, but the lack of the ability of self healing, i.e. the ability to remove or neutralise microcracks without (much) intentional human interaction, which is typical for most materials as encountered in nature. Such self-healing behaviour requires the presence of mobile species, atoms or molecules, in an otherwise solid material. Upon the occurrence of damage the mobile species directionally flow towards the damage location and once arrived there restores the contact between the two crack faces and the mechanical integrity. This directional flow may occur during regular use conditions (self healing behaviour) or conditions during which the mobility is temporarily increased (stimulated self healing).In this manuscript a brief overview of the routes and mechanisms which have been used to create self healing behaviour in the principal classes of engineering materials: polymers, metals, ceramics, concrete, asphalt, fibre composites, is presented.

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Crack-healing ability of structural ceramics and a new methodology to guarantee the structural integrity using the ability and proof-test

Cited by 72 publications

References 33 publications

Cyclic Crack Healing Effect of Al₂O₃Ceramics

Cyclic Crack Healing Effect of Al₂O₃Ceramics

Influence of SiC Content and Heat Treatments on Strength of Al2O3 Ceramics

Routes and mechanisms towards self healing behaviour in engineering materials

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Crack-healing ability of structural ceramics and a new methodology to guarantee the structural integrity using the ability and proof-test

Cited by 72 publications

References 33 publications

Cyclic Crack Healing Effect of Al2O3Ceramics

Cyclic Crack Healing Effect of Al2O3Ceramics

Influence of SiC Content and Heat Treatments on Strength of Al2O3 Ceramics

Routes and mechanisms towards self healing behaviour in engineering materials

Contact Info

Product

Resources

About

Cyclic Crack Healing Effect of Al₂O₃Ceramics

Cyclic Crack Healing Effect of Al₂O₃Ceramics